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358 lines
7.8 KiB
Markdown
358 lines
7.8 KiB
Markdown
# 🏪 useShopInfo Hook 使用指南
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## 📋 概述
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`useShopInfo` 是一个用于管理商店信息的React Hook，提供了商店信息的获取、缓存和管理功能。它基于`getShopInfo()`接口，为全站提供统一的商店信息访问方式。
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## ✨ 特性
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- 🚀 **自动缓存**：30分钟本地缓存，减少网络请求
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- 🔄 **智能刷新**：支持强制刷新和自动过期更新
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- 📱 **离线支持**：网络失败时使用缓存数据
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- 🛠️ **工具方法**：提供常用信息的便捷获取方法
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- 🎯 **TypeScript**：完整的类型支持
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- ⚡ **性能优化**：使用useCallback避免不必要的重渲染
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## 🔧 基本用法
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### 1. 导入Hook
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```typescript
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import { useShopInfo } from '@/hooks/useShopInfo';
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```
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### 2. 在组件中使用
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```typescript
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const MyComponent = () => {
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const {
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shopInfo,
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loading,
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error,
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getWebsiteName,
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getWebsiteLogo
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} = useShopInfo();
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if (loading) {
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return <div>加载中...</div>;
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}
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if (error) {
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return <div>加载失败: {error}</div>;
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}
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return (
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<div>
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<img src={getWebsiteLogo()} alt="Logo" />
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<h1>{getWebsiteName()}</h1>
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</div>
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);
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};
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```
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## 📊 API 参考
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### 状态属性
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| 属性 | 类型 | 说明 |
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|------|------|------|
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| `shopInfo` | `CmsWebsite \| null` | 商店信息对象 |
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| `loading` | `boolean` | 是否正在加载 |
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| `error` | `string \| null` | 错误信息 |
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### 方法
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| 方法 | 参数 | 返回值 | 说明 |
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|------|------|--------|------|
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| `fetchShopInfo` | `forceRefresh?: boolean` | `Promise<CmsWebsite \| null>` | 获取商店信息 |
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| `refreshShopInfo` | - | `Promise<CmsWebsite \| null>` | 强制刷新商店信息 |
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| `clearCache` | - | `void` | 清除本地缓存 |
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### 工具方法
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| 方法 | 返回值 | 说明 |
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|------|--------|------|
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| `getWebsiteName()` | `string` | 获取网站名称，默认"商城" |
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| `getWebsiteLogo()` | `string` | 获取网站Logo URL |
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| `getDarkLogo()` | `string` | 获取深色模式Logo URL |
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| `getDomain()` | `string` | 获取网站域名 |
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| `getPhone()` | `string` | 获取联系电话 |
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| `getEmail()` | `string` | 获取邮箱地址 |
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| `getAddress()` | `string` | 获取地址 |
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| `getIcpNo()` | `string` | 获取ICP备案号 |
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| `getStatus()` | `object` | 获取网站状态信息 |
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| `getConfig()` | `any` | 获取网站配置 |
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| `getNavigation()` | `object` | 获取导航菜单 |
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| `isSearchEnabled()` | `boolean` | 是否支持搜索 |
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| `getVersionInfo()` | `object` | 获取版本信息 |
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## 🎯 使用场景
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### 1. 页面头部组件
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```typescript
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// src/pages/index/Header.tsx
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import { useShopInfo } from '@/hooks/useShopInfo';
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const Header = () => {
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const { getWebsiteName, getWebsiteLogo, loading } = useShopInfo();
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return (
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<NavBar
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left={
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<div style={{display: 'flex', alignItems: 'center'}}>
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<Avatar size="22" src={getWebsiteLogo()} />
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<span>{getWebsiteName()}</span>
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</div>
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}
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/>
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);
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};
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```
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### 2. 首页组件
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```typescript
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// src/pages/index/index.tsx
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import { useShopInfo } from '@/hooks/useShopInfo';
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const Home = () => {
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const { shopInfo, loading, error } = useShopInfo();
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useEffect(() => {
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if (shopInfo) {
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// 设置页面标题
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Taro.setNavigationBarTitle({
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title: shopInfo.websiteName || '商城'
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});
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}
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}, [shopInfo]);
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// 分享配置
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useShareAppMessage(() => ({
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title: shopInfo?.websiteName || '精选商城',
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imageUrl: shopInfo?.websiteLogo
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}));
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return (
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<div>
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{/* 页面内容 */}
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</div>
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);
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};
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```
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### 3. 商品详情页分享
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```typescript
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// src/shop/goodsDetail/index.tsx
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import { useShopInfo } from '@/hooks/useShopInfo';
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const GoodsDetail = () => {
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const { getWebsiteName, getWebsiteLogo } = useShopInfo();
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useShareAppMessage(() => ({
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title: `${goods?.name} - ${getWebsiteName()}`,
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path: `/shop/goodsDetail/index?id=${goodsId}`,
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imageUrl: goods?.image || getWebsiteLogo()
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}));
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return (
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<div>
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{/* 商品详情 */}
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</div>
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);
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};
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```
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### 4. 联系我们页面
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```typescript
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const ContactPage = () => {
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const {
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getPhone,
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getEmail,
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getAddress,
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getIcpNo
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} = useShopInfo();
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return (
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<div>
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<div>电话: {getPhone()}</div>
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<div>邮箱: {getEmail()}</div>
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<div>地址: {getAddress()}</div>
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<div>备案号: {getIcpNo()}</div>
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</div>
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);
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};
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```
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### 5. 网站状态检查
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```typescript
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const StatusChecker = () => {
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const { getStatus, getVersionInfo } = useShopInfo();
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const status = getStatus();
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const version = getVersionInfo();
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return (
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<div>
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<div>运行状态: {status.running ? '正常' : '维护中'}</div>
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<div>版本: {version.version === 10 ? '免费版' : version.version === 20 ? '专业版' : '永久授权'}</div>
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{version.expirationTime && (
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<div>到期时间: {version.expirationTime}</div>
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)}
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</div>
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);
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};
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```
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## 🔄 缓存机制
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### 缓存策略
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- **缓存时间**：30分钟
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- **存储位置**：微信小程序本地存储
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- **缓存键名**：`shop_info` 和 `shop_info_cache_time`
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### 缓存行为
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1. **首次加载**：从服务器获取数据并缓存
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2. **后续加载**：优先使用缓存，缓存过期时自动刷新
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3. **网络失败**：使用缓存数据（即使过期）
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4. **强制刷新**：忽略缓存，直接从服务器获取
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### 手动管理缓存
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```typescript
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const { refreshShopInfo, clearCache } = useShopInfo();
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// 强制刷新
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const handleRefresh = async () => {
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await refreshShopInfo();
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};
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// 清除缓存
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const handleClearCache = () => {
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clearCache();
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};
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```
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## 🚀 性能优化
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### 1. 避免重复请求
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```typescript
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// ✅ 推荐：多个组件使用同一个Hook实例
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const App = () => {
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const shopInfo = useShopInfo();
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return (
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<ShopInfoProvider value={shopInfo}>
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<Header />
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<Content />
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<Footer />
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</ShopInfoProvider>
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);
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};
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```
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### 2. 条件渲染优化
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```typescript
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const Component = () => {
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const { shopInfo, loading } = useShopInfo();
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// ✅ 使用loading状态避免闪烁
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if (loading) {
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return <Skeleton />;
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}
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return (
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<div>
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{shopInfo && (
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<img src={shopInfo.websiteLogo} alt="Logo" />
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)}
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</div>
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);
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};
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```
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## 🛠️ 迁移指南
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### 从直接调用API迁移
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#### 迁移前 ❌
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```typescript
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// 旧代码
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const [config, setConfig] = useState<CmsWebsite>();
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useEffect(() => {
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getShopInfo().then((data) => {
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setConfig(data);
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});
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}, []);
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```
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#### 迁移后 ✅
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```typescript
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// 新代码
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const { shopInfo: config, loading } = useShopInfo();
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```
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### 批量替换步骤
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1. **替换导入**
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```typescript
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// 删除
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import { getShopInfo } from '@/api/layout';
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// 添加
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import { useShopInfo } from '@/hooks/useShopInfo';
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```
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2. **替换状态管理**
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```typescript
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// 删除
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const [config, setConfig] = useState<CmsWebsite>();
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// 替换为
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const { shopInfo: config, loading, error } = useShopInfo();
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```
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3. **删除useEffect**
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```typescript
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// 删除这些代码
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useEffect(() => {
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getShopInfo().then((data) => {
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setConfig(data);
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});
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}, []);
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```
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## 🧪 测试示例
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```typescript
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// 测试组件
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const TestComponent = () => {
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const {
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shopInfo,
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loading,
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error,
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refreshShopInfo,
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getWebsiteName
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} = useShopInfo();
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return (
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<div>
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<div>状态: {loading ? '加载中' : '已加载'}</div>
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<div>错误: {error || '无'}</div>
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<div>网站名: {getWebsiteName()}</div>
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<button onClick={refreshShopInfo}>刷新</button>
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<pre>{JSON.stringify(shopInfo, null, 2)}</pre>
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</div>
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);
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};
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```
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## 🎉 总结
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`useShopInfo` Hook 提供了：
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- ✅ **统一的商店信息管理**
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- ✅ **智能缓存机制**
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- ✅ **丰富的工具方法**
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- ✅ **完整的TypeScript支持**
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- ✅ **简单的迁移路径**
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通过使用这个Hook，你可以在整个应用中轻松访问和管理商店信息，提高代码的可维护性和用户体验。
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